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Sholpan [36]
2 years ago
15

The sum of the interior angles of any triangle is equal to:

Mathematics
2 answers:
IRISSAK [1]2 years ago
8 0
C sinc eeach angle is 60 degrees so 60x3=180
geniusboy [140]2 years ago
4 0

The answer is c. 180

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A square pyramid has a height of 25 ft and each side of the base has a length of 15 ft.
Naya [18.7K]

Answer:

Surface area of square pyramid is computed as follows:

A = a² + a*√(a² + 4h²)

where <em>a</em> is the base length and <em>h</em> is the height.

If a model of the square pyramid is scaled down by a factor of x, then the surface area will be:

A' = (a/x)² + (a/x)*√[(a/x)² + 4(h/x)²]

A' = a²/x² + a/x * √[a²/x² + 4h²/x²]

A' = a²/x² + a/x * √[(a² + 4h²)/x²]

A' = a²/x² + a/x * √(a² + 4h²)/√x²

A' = a²/x² + a/x² * √(a² + 4h²)

A' = 1/x² * [a² + a*√(a² + 4h²)]

A' = 1/x² * A

That is, the surface area will be 1/x² times the original surface area. If h = 25 ft and a = 15 ft:

A = 15² + 15*√(15² + 4(25)²) =  1008.02 ft²

The factor is not mentioned in the question, nevertheless, the area will be  1008.02/factor² ft²

3 0
3 years ago
How to simplify questions
forsale [732]
To simplify questions, you answer them.
8 0
3 years ago
A certain statistic will be used as an unbiased estimator of a parameter. Let R represent the sampling distribution of the estim
7nadin3 [17]

Answer:

c. The expected values of R and S will be equal, and the variability of R will be greater than the variability of S.

Step-by-step explanation:

This is Central Limit Theorem concept in which independent variables are added and form a normal distribution. The random sample of n sample size is selected which calculates normally distributed mean and variance. The expected value of samples distributor will be higher than the sample distribution.

6 0
3 years ago
The sum of 13 divided by a number and that number divided by 13
7nadin3 [17]
Sum means add

the number is x

13 divided by a number is 13/x
the number divided by the number is x/13


so
\frac{13}{x}+\frac{x}{13}
also can be simplified to
\frac{169}{13x}+\frac{x^2}{13x} or
\frac{x62+169}{13x}



translated it is \frac{13}{x}+\frac{x}{13} where x is the number
5 0
3 years ago
Sketch the graph of each line
adoni [48]

Answer:

(0,5) (1,0)

Step-by-step explanation:

Place your first dot on the 5 (0,5) of the y-axis (The one that is vertical) from there count down the line one value at a time until you have counted DOWN 5 times. Go to the right once and place another point there (1,0). Then draw a straight line that connects those two points.

6 0
2 years ago
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